公开(公告)号：AU2003252198A1

公开(公告)日：2004-05-06

申请号：AU2003252198

申请日：2003-09-30

Applicant: HUNTER DOUGLAS IND BV

Inventor： OSINGA ANNE J

IPC: E06B9/32 ,  H02M3/335 ,  H02M7/538 ,  H05K1/14 ,  H05K1/16 ,  E06B9/68 ,  H02M5/10

Abstract: A power conversion unit and a method of providing power to a powered movable window covering using a conversion circuitry with a transformer to obtain relatively low voltage supply from main supply, the method including (a) providing in the conversion circuitry a snubber circuit for the transformer, the snubber circuit absorbing power from the transformer and supplying power absorbed from the transformer back to the conversion circuitry such that heat generation from the conversion circuitry with the transformer is minimised and (b) mounting the conversion circuitry in the headrail of the window covering so as to reduce the overall size of the window covering.

公开(公告)号：CA2443544A1

公开(公告)日：2004-04-17

申请号：CA2443544

申请日：2003-09-30

Applicant: HUNTER DOUGLAS IND BV

Inventor： OSINGA ANNE J

IPC: E06B9/32 ,  H02M3/335 ,  H02M7/538 ,  H05K1/14 ,  H05K1/16 ,  E05F15/18

Abstract: A power conversion unit and a method of providing power to a powered movab le window covering using a conversion circuitry with a transformer to obtain relatively low voltage supply from main supply, the method including (a) providing in t he conversion circuitry a snubber circuit for the transformer, the snubber circuit absorbing power from the transformer and supplying power absorbed from the transformer back to the conversion circuitry such that heat generation from the conversion circuitry with the transformer is minimised and (b) mounting the conversion circuitry in the headrail of the window covering so as to reduce the overall size of the window covering.